To find all the divisors of the number 632,450:
- 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 632,450:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
632,450 = 2 × 52 × 7 × 13 × 139
632,450 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) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 632,450
- 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
prime factor =
7
composite factor = 2 × 5 =
10
prime factor =
13
composite factor = 2 × 7 =
14
composite factor = 5
2 =
25
composite factor = 2 × 13 =
26
composite factor = 5 × 7 =
35
composite factor = 2 × 5
2 =
50
composite factor = 5 × 13 =
65
composite factor = 2 × 5 × 7 =
70
composite factor = 7 × 13 =
91
composite factor = 2 × 5 × 13 =
130
prime factor =
139
composite factor = 5
2 × 7 =
175
composite factor = 2 × 7 × 13 =
182
composite factor = 2 × 139 =
278
composite factor = 5
2 × 13 =
325
composite factor = 2 × 5
2 × 7 =
350
composite factor = 5 × 7 × 13 =
455
composite factor = 2 × 5
2 × 13 =
650
composite factor = 5 × 139 =
695
This list continues below...
... This list continues from above
composite factor = 2 × 5 × 7 × 13 =
910
composite factor = 7 × 139 =
973
composite factor = 2 × 5 × 139 =
1,390
composite factor = 13 × 139 =
1,807
composite factor = 2 × 7 × 139 =
1,946
composite factor = 5
2 × 7 × 13 =
2,275
composite factor = 5
2 × 139 =
3,475
composite factor = 2 × 13 × 139 =
3,614
composite factor = 2 × 5
2 × 7 × 13 =
4,550
composite factor = 5 × 7 × 139 =
4,865
composite factor = 2 × 5
2 × 139 =
6,950
composite factor = 5 × 13 × 139 =
9,035
composite factor = 2 × 5 × 7 × 139 =
9,730
composite factor = 7 × 13 × 139 =
12,649
composite factor = 2 × 5 × 13 × 139 =
18,070
composite factor = 5
2 × 7 × 139 =
24,325
composite factor = 2 × 7 × 13 × 139 =
25,298
composite factor = 5
2 × 13 × 139 =
45,175
composite factor = 2 × 5
2 × 7 × 139 =
48,650
composite factor = 5 × 7 × 13 × 139 =
63,245
composite factor = 2 × 5
2 × 13 × 139 =
90,350
composite factor = 2 × 5 × 7 × 13 × 139 =
126,490
composite factor = 5
2 × 7 × 13 × 139 =
316,225
composite factor = 2 × 5
2 × 7 × 13 × 139 =
632,450
48 factors (divisors)
What times what is 632,450?
What number multiplied by what number equals 632,450?
All the combinations of any two natural numbers whose product equals 632,450.
1 × 632,450 = 632,450
2 × 316,225 = 632,450
5 × 126,490 = 632,450
7 × 90,350 = 632,450
10 × 63,245 = 632,450
13 × 48,650 = 632,450
14 × 45,175 = 632,450
25 × 25,298 = 632,450
26 × 24,325 = 632,450
35 × 18,070 = 632,450
50 × 12,649 = 632,450
65 × 9,730 = 632,450
70 × 9,035 = 632,450
91 × 6,950 = 632,450
130 × 4,865 = 632,450
139 × 4,550 = 632,450
175 × 3,614 = 632,450
182 × 3,475 = 632,450
278 × 2,275 = 632,450
325 × 1,946 = 632,450
350 × 1,807 = 632,450
455 × 1,390 = 632,450
650 × 973 = 632,450
695 × 910 = 632,450
24 unique multiplications The final answer:
(scroll down)