Focus on the Family ministry logo. Stylized silhouette of young child holding parents' hands

Matthew Parker’s Decoder #2017-01

Did you have a tough time cracking January’s stopwatch code? Here it is again:

Matthew's Decoder #2017-01

How It Works

First, multiply the minutes by 60 and add the remaining seconds to convert stopwatch times to total seconds: 179, 2, 151, 5 and 41.

This code uses additive primes—prime numbers whose digits add up to another prime number. For example, 83 is a number that can only be divided by 1 or itself, and so is 11 (8 + 3). That makes 83 an additive prime.

Substitute the total seconds on each watch for a letter using the additive primes table below.

2
3
5
7
11
23
29
41
43
47
61
67
83
89
101
113
131
137
139
151
157
173
179
191
193
197

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

Look for a new code in the next issue of Clubhouse magazine.

You May Also Like

Welcome to Clubhouse

Every month, Focus on the Family Clubhouse magazine features fun crafts and recipes for children ages 8-12. More than 80,000 families use the Christ-centered stories, quizzes and puzzles to help their kids learn about and grow closer to Jesus.