To find all the divisors of the number 875,600:
- 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 875,600:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
875,600 = 24 × 52 × 11 × 199
875,600 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 = (4 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 5 × 3 × 2 × 2 = 60
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 875,600
- 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
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 5
2 =
25
composite factor = 2
3 × 5 =
40
composite factor = 2
2 × 11 =
44
composite factor = 2 × 5
2 =
50
composite factor = 5 × 11 =
55
composite factor = 2
4 × 5 =
80
composite factor = 2
3 × 11 =
88
composite factor = 2
2 × 5
2 =
100
composite factor = 2 × 5 × 11 =
110
composite factor = 2
4 × 11 =
176
prime factor =
199
composite factor = 2
3 × 5
2 =
200
composite factor = 2
2 × 5 × 11 =
220
composite factor = 5
2 × 11 =
275
composite factor = 2 × 199 =
398
composite factor = 2
4 × 5
2 =
400
composite factor = 2
3 × 5 × 11 =
440
composite factor = 2 × 5
2 × 11 =
550
composite factor = 2
2 × 199 =
796
composite factor = 2
4 × 5 × 11 =
880
This list continues below...
... This list continues from above
composite factor = 5 × 199 =
995
composite factor = 2
2 × 5
2 × 11 =
1,100
composite factor = 2
3 × 199 =
1,592
composite factor = 2 × 5 × 199 =
1,990
composite factor = 11 × 199 =
2,189
composite factor = 2
3 × 5
2 × 11 =
2,200
composite factor = 2
4 × 199 =
3,184
composite factor = 2
2 × 5 × 199 =
3,980
composite factor = 2 × 11 × 199 =
4,378
composite factor = 2
4 × 5
2 × 11 =
4,400
composite factor = 5
2 × 199 =
4,975
composite factor = 2
3 × 5 × 199 =
7,960
composite factor = 2
2 × 11 × 199 =
8,756
composite factor = 2 × 5
2 × 199 =
9,950
composite factor = 5 × 11 × 199 =
10,945
composite factor = 2
4 × 5 × 199 =
15,920
composite factor = 2
3 × 11 × 199 =
17,512
composite factor = 2
2 × 5
2 × 199 =
19,900
composite factor = 2 × 5 × 11 × 199 =
21,890
composite factor = 2
4 × 11 × 199 =
35,024
composite factor = 2
3 × 5
2 × 199 =
39,800
composite factor = 2
2 × 5 × 11 × 199 =
43,780
composite factor = 5
2 × 11 × 199 =
54,725
composite factor = 2
4 × 5
2 × 199 =
79,600
composite factor = 2
3 × 5 × 11 × 199 =
87,560
composite factor = 2 × 5
2 × 11 × 199 =
109,450
composite factor = 2
4 × 5 × 11 × 199 =
175,120
composite factor = 2
2 × 5
2 × 11 × 199 =
218,900
composite factor = 2
3 × 5
2 × 11 × 199 =
437,800
composite factor = 2
4 × 5
2 × 11 × 199 =
875,600
60 factors (divisors)
What times what is 875,600?
What number multiplied by what number equals 875,600?
All the combinations of any two natural numbers whose product equals 875,600.
1 × 875,600 = 875,600
2 × 437,800 = 875,600
4 × 218,900 = 875,600
5 × 175,120 = 875,600
8 × 109,450 = 875,600
10 × 87,560 = 875,600
11 × 79,600 = 875,600
16 × 54,725 = 875,600
20 × 43,780 = 875,600
22 × 39,800 = 875,600
25 × 35,024 = 875,600
40 × 21,890 = 875,600
44 × 19,900 = 875,600
50 × 17,512 = 875,600
55 × 15,920 = 875,600
80 × 10,945 = 875,600
88 × 9,950 = 875,600
100 × 8,756 = 875,600
110 × 7,960 = 875,600
176 × 4,975 = 875,600
199 × 4,400 = 875,600
200 × 4,378 = 875,600
220 × 3,980 = 875,600
275 × 3,184 = 875,600
398 × 2,200 = 875,600
400 × 2,189 = 875,600
440 × 1,990 = 875,600
550 × 1,592 = 875,600
796 × 1,100 = 875,600
880 × 995 = 875,600
30 unique multiplications The final answer:
(scroll down)