Factor Pairs of 120
- 1 x 120 = 120.
- 2 x 60 = 120.
- 3 x 40 = 120.
- 4 x 30 = 120.
- 5 x 24 = 120.
- 6 x 20 = 120.
- 8 x 15 = 120.
- 10 x 12 = 120.
How many prime numbers are there till 120?
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, etc.
What is the prime factorization of 120 Step 1?
Step 1: 120 is an even number, this is easy to tell because all even numbers have a 0, 2, 4, 6, or 8 in the units column so: 120/2 = 60 so 2 is a factor. Factors after Step 1: 2, 60 Step 2: 60 is an even number so it can be divided by 2. (See reason for Step 1) 60/2 = 30 so 2 is another factor. Factors after Step 2: 2, 2, 30
How to calculate the factor pairs of 120?
From this thinking process we conclude that the factor pairs of 120 are 1 x 120, 2 x 60, 3 x 40, 4 x 30, 5 x 24, 6 x 20, 8 x 15, and 10 x 12. When 120 is a clue in the FIND THE FACTORS 1 – 12 puzzles, use 10 and 12 as the factors. 5! = 1 x 2 x 3 x 4 x 5 = 120.
Can a factor of 120 end with a zero?
Yes, 120 ends with a zero, so 10 is a factor of 120, and 10 x 12 = 120. From this thinking process we conclude that the factor pairs of 120 are 1 x 120, 2 x 60, 3 x 40, 4 x 30, 5 x 24, 6 x 20, 8 x 15, and 10 x 12. When 120 is a clue in the FIND THE FACTORS 1 – 12 puzzles, use 10 and 12 as the factors. 5! = 1 x 2 x 3 x 4 x 5 = 120.
Is the factor of 120 divisible by 9?
No, see 3 above. 120 is not divisible by 9. Yes, 120 ends with a zero, so 10 is a factor of 120, and 10 x 12 = 120. From this thinking process we conclude that the factor pairs of 120 are 1 x 120, 2 x 60, 3 x 40, 4 x 30, 5 x 24, 6 x 20, 8 x 15, and 10 x 12. When 120 is a clue in the FIND THE FACTORS 1 – 12 puzzles, use 10 and 12 as the factors.
