1107572
Beschreibung
Mindmap von Sarah Owen, aktualisiert more than 1 year ago
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Erstellt von Sarah Owen
vor mehr als 10 Jahre
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Multiples, Factors & Primes
- A prime number is a number greater than
1 which has only two factors: Itself & 1.
- Prime numbers to 100:
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
- The sum of two prime numbers
can be a prime number but only
when one of the prime numbers is
2
- 2+3=5
2+5=7
2+11=13
- 2+3=5
2+5=7
2+11=13
- A number written as
the product of prime
numbers is written in
prime factor form
- 720 = 2 x 2 x 2 x 2 x 3 x 3 x 5 as prime factor form is
720 = 2(4) x 3(2) x 5 (brackets are to the power of)
- 2, 3, and 5 are prime factors of 720
- 2, 3, and 5 are prime factors of 720
- 720 = 2 x 2 x 2 x 2 x 3 x 3 x 5 as prime factor form is
720 = 2(4) x 3(2) x 5 (brackets are to the power of)
- The sum of two prime numbers
can be a prime number but only
when one of the prime numbers is
2
- Prime numbers to 100:
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
- Multiples of a number are the results of
multiplying the number by a positive whole
number.
- 15=3x5
308=4x7x11
- 15 is a multiple of 3
& also of 5
- 3 is a factor of 15.
5 is also a factor
- 308 is a multiple
of 4, 7 & 11
- 4, 7 & 11 are
factors of 308
- The factors of a number are whole numbers
that divide exactly into the number. The
factor includes 1 & itself.
- 15 is a multiple of 3
& also of 5
- 15=3x5
308=4x7x11
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