Wherever Jews live.
As of 2013:
Israel.......... 6,042,000
America....... 5,425,000
France......... 480,000
Canada........ 375,000
United Kingdom 291,000
Russia........ 194,000
Argentina.... 182,300
Germany......119,000
Australia...... 107,500
Brazil........... 95,300
South Africa.. 70,800
Ukraine......... 67,000
Hungary........ 48,600
Mexico.......... 39,400
Belgium........ 30,300
Holland......... 30,000
Italy.............. 28,400
Chile............. 20,500
Very roughly 100 other countries, combined: 250,200
No.
Judaism.
Which one of the following elements is common to Judaism, Christianity, Islam, and Zoroastrianis
Judaism (75%).
Abraham.
they are all monotheistic
The common ancestor of the three religions Judaism, Christianity and Islam was Abraham
Islam, Judaism and Christianity.
Judaism and Christianity have the bulk of the old testament in common. However Islam draws some of its source material from biblical stories but re-interprets it, so it does not have anything in common in terms of the bible.
Some of the most common beliefs are Christianity, Muslim, Judaism, Hindu, and Atheism.
No. The two religions have very little in common.
See the attached Related Link for a glossary.