From 8564d3de284df4f591e2be1113619e3501c97fb6 Mon Sep 17 00:00:00 2001
From: Lowl3v3l <lowl3v3l@yahoo.de>
Date: Tue, 11 Jul 2017 16:56:15 +0200
Subject: [PATCH 1/4] solved 47 in racket, ugly code

---
 47/euler47.rkt | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 47/euler47.rkt

diff --git a/47/euler47.rkt b/47/euler47.rkt
new file mode 100644
index 0000000..0c27b85
--- /dev/null
+++ b/47/euler47.rkt
@@ -0,0 +1,22 @@
+#lang racket
+
+(require math/number-theory)
+
+(define (primefactors x)
+  (if (prime? x)
+      (list x)
+      (for/or ((i (cons 2 (range 3 (+ 1 (ceiling (sqrt x))) 2)))
+               #:when (prime? i)
+               #:when (zero? (remainder x i)))
+        (cons i (primefactors (quotient x i))))))
+
+(define (recur x)
+  (if (and
+       (equal? (length (remove-duplicates (primefactors x))) 4)
+       (equal? (length (remove-duplicates (primefactors (+ x 1)))) 4)
+       (equal? (length (remove-duplicates (primefactors (+ x 2)))) 4)
+       (equal? (length (remove-duplicates (primefactors (+ x 3)))) 4))
+      x
+      (recur (+ x 1))))
+
+(recur 2)
\ No newline at end of file

From 13036fb7f629637ba01f7a8b3e12c35291244fd4 Mon Sep 17 00:00:00 2001
From: pikatech <pikatech@mail.de>
Date: Tue, 11 Jul 2017 20:18:46 +0200
Subject: [PATCH 2/4] Python one-liner

---
 16/euler16.py | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 16/euler16.py

diff --git a/16/euler16.py b/16/euler16.py
new file mode 100644
index 0000000..5ffb667
--- /dev/null
+++ b/16/euler16.py
@@ -0,0 +1 @@
+sum([int(x) for x in list(str(2**1000))])

From b08bd9a3a7632f209938c2871c7453f57deffd6a Mon Sep 17 00:00:00 2001
From: pikatech <pikatech@mail.de>
Date: Tue, 11 Jul 2017 20:23:22 +0200
Subject: [PATCH 3/4] Essentially euler 16 plus an import.

---
 20/euler20.py | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 20/euler20.py

diff --git a/20/euler20.py b/20/euler20.py
new file mode 100644
index 0000000..1392e9d
--- /dev/null
+++ b/20/euler20.py
@@ -0,0 +1,2 @@
+import math
+sum([int(x) for x in list(str(math.factorial(100)))])

From c280f28d0ae6dbdcc5c96b3b3c6abf979f582e66 Mon Sep 17 00:00:00 2001
From: pikatech <pikatech@mail.de>
Date: Tue, 11 Jul 2017 20:31:39 +0200
Subject: [PATCH 4/4] Another python one-liner.

---
 48/euler48.py | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 48/euler48.py

diff --git a/48/euler48.py b/48/euler48.py
new file mode 100644
index 0000000..58ce145
--- /dev/null
+++ b/48/euler48.py
@@ -0,0 +1 @@
+str(sum([x**x for x in range(1,1001)]))[-10:]