To find all the divisors of the number 4,137,250:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 4,137,250:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,137,250 = 2 × 53 × 13 × 19 × 67
4,137,250 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 4 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 4,137,250
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
5
composite factor = 2 × 5 =
10
prime factor =
13
prime factor =
19
composite factor = 5
2 =
25
composite factor = 2 × 13 =
26
composite factor = 2 × 19 =
38
composite factor = 2 × 5
2 =
50
composite factor = 5 × 13 =
65
prime factor =
67
composite factor = 5 × 19 =
95
composite factor = 5
3 =
125
composite factor = 2 × 5 × 13 =
130
composite factor = 2 × 67 =
134
composite factor = 2 × 5 × 19 =
190
composite factor = 13 × 19 =
247
composite factor = 2 × 5
3 =
250
composite factor = 5
2 × 13 =
325
composite factor = 5 × 67 =
335
composite factor = 5
2 × 19 =
475
composite factor = 2 × 13 × 19 =
494
composite factor = 2 × 5
2 × 13 =
650
composite factor = 2 × 5 × 67 =
670
composite factor = 13 × 67 =
871
composite factor = 2 × 5
2 × 19 =
950
composite factor = 5 × 13 × 19 =
1,235
composite factor = 19 × 67 =
1,273
composite factor = 5
3 × 13 =
1,625
composite factor = 5
2 × 67 =
1,675
composite factor = 2 × 13 × 67 =
1,742
This list continues below...
... This list continues from above
composite factor = 5
3 × 19 =
2,375
composite factor = 2 × 5 × 13 × 19 =
2,470
composite factor = 2 × 19 × 67 =
2,546
composite factor = 2 × 5
3 × 13 =
3,250
composite factor = 2 × 5
2 × 67 =
3,350
composite factor = 5 × 13 × 67 =
4,355
composite factor = 2 × 5
3 × 19 =
4,750
composite factor = 5
2 × 13 × 19 =
6,175
composite factor = 5 × 19 × 67 =
6,365
composite factor = 5
3 × 67 =
8,375
composite factor = 2 × 5 × 13 × 67 =
8,710
composite factor = 2 × 5
2 × 13 × 19 =
12,350
composite factor = 2 × 5 × 19 × 67 =
12,730
composite factor = 13 × 19 × 67 =
16,549
composite factor = 2 × 5
3 × 67 =
16,750
composite factor = 5
2 × 13 × 67 =
21,775
composite factor = 5
3 × 13 × 19 =
30,875
composite factor = 5
2 × 19 × 67 =
31,825
composite factor = 2 × 13 × 19 × 67 =
33,098
composite factor = 2 × 5
2 × 13 × 67 =
43,550
composite factor = 2 × 5
3 × 13 × 19 =
61,750
composite factor = 2 × 5
2 × 19 × 67 =
63,650
composite factor = 5 × 13 × 19 × 67 =
82,745
composite factor = 5
3 × 13 × 67 =
108,875
composite factor = 5
3 × 19 × 67 =
159,125
composite factor = 2 × 5 × 13 × 19 × 67 =
165,490
composite factor = 2 × 5
3 × 13 × 67 =
217,750
composite factor = 2 × 5
3 × 19 × 67 =
318,250
composite factor = 5
2 × 13 × 19 × 67 =
413,725
composite factor = 2 × 5
2 × 13 × 19 × 67 =
827,450
composite factor = 5
3 × 13 × 19 × 67 =
2,068,625
composite factor = 2 × 5
3 × 13 × 19 × 67 =
4,137,250
64 factors (divisors)
What times what is 4,137,250?
What number multiplied by what number equals 4,137,250?
All the combinations of any two natural numbers whose product equals 4,137,250.
1 × 4,137,250 = 4,137,250
2 × 2,068,625 = 4,137,250
5 × 827,450 = 4,137,250
10 × 413,725 = 4,137,250
13 × 318,250 = 4,137,250
19 × 217,750 = 4,137,250
25 × 165,490 = 4,137,250
26 × 159,125 = 4,137,250
38 × 108,875 = 4,137,250
50 × 82,745 = 4,137,250
65 × 63,650 = 4,137,250
67 × 61,750 = 4,137,250
95 × 43,550 = 4,137,250
125 × 33,098 = 4,137,250
130 × 31,825 = 4,137,250
134 × 30,875 = 4,137,250
190 × 21,775 = 4,137,250
247 × 16,750 = 4,137,250
250 × 16,549 = 4,137,250
325 × 12,730 = 4,137,250
335 × 12,350 = 4,137,250
475 × 8,710 = 4,137,250
494 × 8,375 = 4,137,250
650 × 6,365 = 4,137,250
670 × 6,175 = 4,137,250
871 × 4,750 = 4,137,250
950 × 4,355 = 4,137,250
1,235 × 3,350 = 4,137,250
1,273 × 3,250 = 4,137,250
1,625 × 2,546 = 4,137,250
1,675 × 2,470 = 4,137,250
1,742 × 2,375 = 4,137,250
32 unique multiplications The final answer:
(scroll down)