Mathematics made clear

Factors ad multiples Worksheet-1 Q1. Which of the following are prime numbers? a.                    383 b.                    72 c.                     54 d.                 211    Q2. Find the GCF of 15 and 6. a.                    5 b.                   6 c.                    3 d.                   2 Q3. What is the least common multiple of 8 and 1...

Factoring Worksheet List all the factors of the given numbers. 1 a.   55   1 b.   54   2 a.   88   2 b.   100   3 a.   36   3 b.   70   4 a.   99   4 b.   46                                                                 Answer Key 1 a.  1, 5, 11, 55 1 b.  1, 2, 3, 6, 9, 18, 27, 54 2 a.  1, 2, 4, 8, 11, 22, 44, 88 2 b.  1, 2, 4, 5, 10, 20, 25, 50, 100 3 a.  1, 2, 3, 4, 6, 9, 12, 18, 36 3 b.  1, 2, 5, 7, 10, 14, 35, 70 4 a.  1, 3, 9, 11, 33, 99 4 b.  1, 2, 23, 46

Factorisation  Worksheet 1 Factor the following numbers to their prime factors. 1 a.   50 1 b.   17 2 a.   47 2 b.   40 3 a.   5 3 b.   23 4 a.   27 4 b.   82 Answer Key 1 a.  2 x 5 x 5 1 b.  17 x 1 (prime) 2 a.  47 x 1 (prime) 2 b.   2 x 2 x 2  x 5 3 a.  5 x 1 (prime) 3 b.  23 x 1 (prime) 4 a.  3 x 3 x 3 4 b.  2  × 41