Intruder seal to unmask ! ! ! ( 11 - 12 years old )
The numbers on the fur seals
are all prime numbers
that is to say, they only are divisible
by 1 and by themselves.
The intruder is 14,
because it's divisible by 1, 2, 7 and 14.
If the intruder had stuck 41 instead of 14
... it would have gone unnoticed ! ! !
Intruder seal to unmask ! ! ! ( 11 - 12 years old )
The numbers on the fur seals
are all prime numbers
that is to say, they only are divisible
by 1 and by themselves.
The intruder is 14,
because it's divisible by 1, 2, 7 and 14.
If the intruder had stuck 41 instead of 14
... it would have gone unnoticed ! ! !
Intruder seal to unmask ! ! ! ( 11 - 12 years old )
The numbers on the fur seals
are all prime numbers
that is to say, they only are divisible
by 1 and by themselves.
The intruder is 14,
because it's divisible by 1, 2, 7 and 14.
If the intruder had stuck 41 instead of 14
... it would have gone unnoticed ! ! !
