Even Numbers
Are even numbers ever prime?
Are all odd numbers prime?
No, many odd numbers are prime (1, 3, 5, 7, 11...), and many odd numbers are composite (9, 15, 21...).
What are the prime factors of 5?
5 is a prime number, so the prime factors are 1 x 5
What are the prime factors of 42?
2 x 3 x 7
What are the prime factors of 100?
10 x 10 =
2 x 5 x 2 x 5 =
2 x 2 x 5 x 5 = 22 x 52
What are the prime factors of 22?
2 x 11
What are the prime factors of 49
7 x 7
What are the prime factors of 17?
17 is a prime number, so the prime factors are 1 x 17.
What are the prime factors of 38?
38
2 x 16
2 x (2 x 8)
2 x 2 x (2 x 4)
2 x 2 x 2 x (2 x 2) = 25
What are the prime factors of 60?
2 x 30
2 x 2 x 15
2 x 2 x 3 x 5 = 22 x 3 x 5
What are the prime factors of 36
2 x 2 x 3 x 3
or
22 x 32
What are the prime factors of 21?
3 x 7
What are the prime factors of 107?
107 is a prime number, so the prime factors are 1 x 107.
7 x 7 = 72
What are the prime factors of 175?
175 =
5 x 35 =
5 x 5 x 7 = 52 x 7
What are the prime factors of 110?
2 x 5 x 11
What are the prime factors of 333?
333
3 x 111
3 x (3 x 37)
The prime factors are 3 x 3 x 37 = 32 x 37
What are the prime factors of 347?
347 is a prime number, so it's prime factors are 1 x 347
What are the prime factors of 28?
2 x 14
2 x 2 x 7 = 22 x 7
What are the prime factors of 182?
2 x 91 =
2 x 7 x 13
What are the prime factors of 532?
500
50 x 10
(5 x 10) x (2 x 5)
5 x (2 x 5) x 2 x 5
2 x 2 x 5 x 5 x5
- OR -
22 x 53
What are the prime factors of 345?
345
3 x 115
3 x (5 x 23)
The prime factors are: 3 x 5 x 23
What are the prime factors of 1?
1 is a prime numbers, so the prime factors are 1 x 1.
What are the prime factors of 41?
41 is a prime number, so the prime factors are 1 x 41.
What are the prime factors of 199?
199 is prime, so the prime factors are 1 x 199.