To find all the divisors of the number 198,264:
- 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 198,264:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
198,264 = 23 × 3 × 11 × 751
198,264 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 = (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 198,264
- 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 =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 2 × 11 =
22
composite factor = 2
3 × 3 =
24
composite factor = 3 × 11 =
33
composite factor = 2
2 × 11 =
44
composite factor = 2 × 3 × 11 =
66
composite factor = 2
3 × 11 =
88
composite factor = 2
2 × 3 × 11 =
132
composite factor = 2
3 × 3 × 11 =
264
This list continues below...
... This list continues from above
prime factor =
751
composite factor = 2 × 751 =
1,502
composite factor = 3 × 751 =
2,253
composite factor = 2
2 × 751 =
3,004
composite factor = 2 × 3 × 751 =
4,506
composite factor = 2
3 × 751 =
6,008
composite factor = 11 × 751 =
8,261
composite factor = 2
2 × 3 × 751 =
9,012
composite factor = 2 × 11 × 751 =
16,522
composite factor = 2
3 × 3 × 751 =
18,024
composite factor = 3 × 11 × 751 =
24,783
composite factor = 2
2 × 11 × 751 =
33,044
composite factor = 2 × 3 × 11 × 751 =
49,566
composite factor = 2
3 × 11 × 751 =
66,088
composite factor = 2
2 × 3 × 11 × 751 =
99,132
composite factor = 2
3 × 3 × 11 × 751 =
198,264
32 factors (divisors)
What times what is 198,264?
What number multiplied by what number equals 198,264?
All the combinations of any two natural numbers whose product equals 198,264.
1 × 198,264 = 198,264
2 × 99,132 = 198,264
3 × 66,088 = 198,264
4 × 49,566 = 198,264
6 × 33,044 = 198,264
8 × 24,783 = 198,264
11 × 18,024 = 198,264
12 × 16,522 = 198,264
22 × 9,012 = 198,264
24 × 8,261 = 198,264
33 × 6,008 = 198,264
44 × 4,506 = 198,264
66 × 3,004 = 198,264
88 × 2,253 = 198,264
132 × 1,502 = 198,264
264 × 751 = 198,264
16 unique multiplications The final answer:
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